If You Can Walk This Many Steps in 10 Minutes, You’re in Peak Cardio Shape at Any Age

Try this 10-minute walking test to see how many steps you can take and what your result says about cardio fitness.
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This 40-minute treadmill workout cut my 5km running time by 8 minutes - here's how to do it

This workout consists of four-minute bursts of exercise, done at 85 to 95% of your maximum heart rate. Afterwards, you get ...